Respiratory system

Presentation

•

Biology, Science

•

7th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS2-3, MS-LS1-7, MS-LS1-6

Standards-aligned

Kasthuri Subramaniam

Used 40+ times

FREE Resource

9 Slides • 31 Questions

Respiratory system

CHECKLIST

Draw and label the internal structures of the human respiratory system and describe the breathing mechanism.
Describe the movement and exchange of oxygen and carbon dioxide in the human body.

Multiple Choice

What is tube that is also known as your wind pipe?

esophogus

bronchi

trachea

alveoli

Multiple Choice

Flap of tissue that covers the opening to the windpipe during swallowing

Pharynx

Trachea

Epiglottis

Multiple Choice

Membrane layer which covers the lungs

Visceral pleura

Alveolar Ducts

Alveoli

Bronchi

Multiple Choice

Alveoli increase the surface area in the lungs to allow...

More nutrients to be absorbed

You to breathe faster

You to breathe slower

More O2 and CO2 to exchange

Multiple Choice

This is the airway that has two pairs of vocal chords attached to it

Lungs

Diaphragm

Pharynx

Larynx

Multiple Choice

Made up of spongy, elastic tissue that stretches as you breathe

Alveoli

Lungs

Nasal Cavity

Pharynx

Multiple Choice

What is the function of the respiratory system

Take in O2 only

Remove CO2 only

Take in O2 ad remove CO2

Make sugar

Multiple Choice

Passage way that moistens the air and has hairs to trap dust and particles

Nasal cavity

Bronchi

Mouth cavity

Larynx

Multiple Choice

Smaller tubes within the lungs

Bronchioles

Bronchi

Lungs

Alveoli

Multiple Choice

Muscular structure that helps to expand and contract the lungs, forcing air in and out

Pharynx

Nasal cavity

Alveoli

Diaphragm

Multiple Choice

Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide

Pharynx

Diaphragm

Alveoli

Lungs

Multiple Choice

Two short tubes that carry air into the lungs

Trachea

Bronchioles

Lungs

Bronchi

Multiple Choice

This is a tube about 12cm long with c-shaped rings of cartilage to keep it open

Nasal cavity

Trachea

Mouth Cavity

Pharynx

Exchange of gasses

Exchange of oxygen and carbon dioxide due to the difference in concentration in the alveolus and blood capillary.
Diffusion of oxygen from the alveolus into the blood capillary.
Formation of an unstable compound, that is, oxyhaemoglobin.
Release of oxygen into the body cells.
Oxidation of food during cellular respiration to release energy.
Diffusion of carbon dioxide from the cell into the blood capillary then into the alveolus

Alveolus

Factors that affect the efficiency of the alveolus to maximise the gaseous exchange are
thickness,
moisture,
surface area, and
network of capillaries.

Multiple Choice

Normally in the blood, hemoglobin is saturated with oxygen only up to

80%

95%

75%

50%

Multiple Choice

Blood arriving in the capillary from the body has a...

Higher concentration of carbon dioxide (CO2) and a lower concentration of oxygen (O2)

Higher concentration of oxygen (O2) and a lower concentration of carbon dioxide (CO2)

Multiple Choice

Gaseous exchange happens because of...

Osmosis

Respiration

Diffusion

Semi-permeable membranes

Multiple Choice

Each haemoglobin molecule can bind reversibly with

one atom of oxygen

one molecule of oxygen

two molecules of oxygen

four molecules of oxygen

Multiple Choice

When carbon dioxide binds directly with haemoglobin it forms

carbaminohaemoglobin

carboxyhaemoglobin

carbon diooxyhaemoglobin

carboglobin

Multiple Choice

The main blood vessel responsible for taking oxygenated blood to the body is the

pulmonary artery

aorta

vena cava

pulmonary veins

Multiple Choice

What happens when the intercostals contract during inhalation?

The diaphragm relaxes

The ribs are elevated

Pressure in the lungs increases

The size of the thoracic cavity decreases

Multiple Choice

What are the main muscles of inhalation?

The diaphragm and intercostal muscles

The scalenes and the abdominal muscles

The diaphram and abdominal muscles

The diaphragm and latissimus muscles

Multiple Choice

A contraction of the diaphragm during inhalation causes it to flatten. What else does the contraction result in?

An increase in the volume of the thoracic cavity

Increase in alveolar pressure

A decrease in lung volume

A decrease in the volume of the thoracic cavity

Multiple Choice

What are the products of cellular respiration?

Energy (ATP), Water, and Carbon DIoxide.

Water and Oxygen

Oxygen and Carbon Dioxide

Water and Energy (ATP)

Multiple Choice

Which gas is more soluble in blood (or water)?

CO2

both have the same solubility

Multiple Choice

Letter D is pointing to which Respiratory organ?

Alveoli

Diaphragm

Lung

Bronchi

Multiple Choice

The air sacs that are covered with capillaries where gas exchange takes place.

Bronchi

Trachea

Oxygen

Alveoli

Multiple Choice

Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area
II. Thin walls
III. Dry surfaces

I and II only

I only

II and III

I, II, and III

Multiple Choice

Respiration is the

Intake of oxygen and release of carbon dioxide over a membrane

Release of energy from food inside cells

Mechanical movement to inhale and exhale air

Feature that enable an animal to survive in its habitat

Multiple Choice

The movement by diffusion of oxygen and carbon dioxide across a membrane

Ventilation

Breathing

Gas exchange

Respiration

Multiple Choice

Gas exchange is needed to supply _____________ to cells and remove __________________

carbon dioxide; oxygen

oxygen; food

oxygen; carbon dioxide

carbon dioxide; water

Multiple Choice

Mechanical movement to inhale and exhale air

Gas Exchange

Respiration

Breathing

Transport

Respiratory system

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